Abstract
Two procedures for the radiochemical group separation of lanthanoids
have been developed. One is intended for total lanthanoid concentrations
below 0.5 ppm, while the other, a faster method is meant for
concentrations of about 0.5...2 ppm. Both methods are based on fusion
with Na2O2 and the hydroxide-fluoride
precipitation cycle. In the first one the separation of the principal
activities is carried out by means of ion exchange and the Sc is removed
through extraction with ether as a thiocyanate complex. In the second
method the separation of Sc and other metals is effected by
tributylphosphate extraction. Results for USGS standards PCC-1 and DTS-1
analyzed and compared with data found in literature. The precision and
accuracy of the results are tested by analyzing USGS standards MAG-a,
QLO-1, SCo-1, SDC-1, BHVO-1, RGM-1, STM-1 and SGR-1.
| Original language | English |
|---|---|
| Pages (from-to) | 323 - 332 |
| Number of pages | 10 |
| Journal | Journal of Radioanalytical Chemistry |
| Volume | 71 |
| Publication status | Published - 1982 |
| MoE publication type | A1 Journal article-refereed |
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Zilliacus, R., Kaistila, M., & Rosenberg, R. (1982). Radiochemical neutron activation analysis of small lanthanoid concentrations. Journal of Radioanalytical Chemistry, 71, 323 - 332.